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參數(shù)資料
型號: AD7656YSTZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 23/32頁
文件大小: 0K
描述: IC ADC 16BIT 6CH 250KSPS 64LQFP
標(biāo)準(zhǔn)包裝: 1,500
位數(shù): 16
采樣率(每秒): 250k
數(shù)據(jù)接口: 串行,并聯(lián)
轉(zhuǎn)換器數(shù)目: 6
功率耗散(最大): 143mW
電壓電源: 模擬和數(shù)字,雙 ±
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 6 個單端,雙極
配用: EVAL-AD7656-1EDZ-ND - BOARD EVAL CONTROL AD7656-1
EVAL-AD7656-1CBZ-ND - BOARD EVAL FOR AD7656-1
EVAL-AD7656CBZ-ND - BOARD EVAL FOR AD7656
Data Sheet
AD7656/AD7657/AD7658
Rev. D | Page 3 of 32
SPECIFICATIONS
AD7656
VREF = 2.5 V internal/external, AVCC = 4.75 V to 5.25 V, DVCC = 4.75 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V;
For ±4 × VREF range: VDD = 10 V to 16.5 V, VSS = 10 V to 16.5 V; For ±2 × VREF range: VDD = 5 V to 16.5 V, VSS = 5 V to 16.5 V;
fSAMPLE = 250 kSPS, TA = TMIN to TMAX, unless otherwise noted.1
Table 1.
Parameter
B Version1
Y Version1
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 50 kHz sine wave
Signal-to-Noise + Distortion (SINAD)2
84
dB min
85.5
dB typ
Signal-to-Noise Ratio (SNR)2
85
dB min
86.5
dB typ
Total Harmonic Distortion (THD)2
90
dB max
92
dB typ
VDD/VSS = ±5 V to ±10 V
100
dB typ
VDD/VSS = ±12 V to ±16.5 V
Peak Harmonic or Spurious Noise (SFDR)2
100
dB typ
Intermodulation Distortion (IMD)2
fa = 50 kHz, fb = 49 kHz
Second-Order Terms
112
dB typ
Third-Order Terms
107
dB typ
Aperture Delay
10
ns max
Aperture Delay Matching
4
ns max
Aperture Jitter
35
ps typ
Channel-to-Channel Isolation2
100
dB typ
fIN on unselected channels up to 100 kHz
Full Power Bandwidth
12
MHz typ
@ 3 dB
2
MHz typ
@ 0.1 dB
DC ACCURACY
Resolution
16
Bits
No Missing Codes
15
14
Bits min
16
Bits min
@ 25°C
Integral Nonlinearity2
±3
±4.5
LSB max
±1
LSB typ
Positive Full-Scale Error2
±0.75
% FSR max
±0.22% FSR typical
Positive Full-Scale Error Matching2
±0.35
% FSR max
Bipolar Zero-Scale Error2
±0.023
% FSR max
±0.004% FSR typical
Bipolar Zero-Scale Error Matching2
±0.038
% FSR max
Negative Full-Scale Error2
±0.75
% FSR max
±0.22% FSR typical
Negative Full-Scale Error Matching2
±0.35
% FSR max
ANALOG INPUT
See Table 8 for min VDD/VSS for each range
Input Voltage Ranges
±4 × VREF
V
RNG bit/RANGE pin = 0
±2 × VREF
V
RNG bit/RANGE pin = 1
DC Leakage Current
±1
A max
Input Capacitance3
10
pF typ
±4 × VREF range when in track
14
pF typ
±2 × VREF range when in track
REFERENCE INPUT/OUTPUT
Reference Input Voltage Range
2.5/3
V min/max
DC Leakage Current
±1
A max
Input Capacitance3
18.5
pF typ
REFEN/DIS = 1
Reference Output Voltage
2.49/2.51
V min/max
Long-Term Stability
150
ppm typ
1,000 hours
Reference Temperature Coefficient
25
ppm/°C max
6
ppm/°C typ
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